Because the protocols are linked by radio transmissions, cables are not required to connect to the computers.

How Does It Work

To connect to a wireless network, the computer can have a wireless network adapter.

Wireless Adaptor: translates data into a radio signal and transmits it using an antenna.

USB adaptor

Notebook adaptor

A router can also connect to a wirless network in which it receives the signal and decodes it

Wireless Connections

Network with wireless router: The router is the central point between two or more wireless devices that share a broadband Internet connection.

Computer to computer wireless network: Wireless devices connect to each other directly, without an intermediary device such as a router.

In The Real World

Many coffee shops are now offering wireless networking for their consumers. Connection is quite simple. First, you must ensure that the laptop is compatible with the wireless internet. Next, you might have to insatll the internet card. Then you merely connect to the avaliable wireless network.

Advantages

Speed

Inexpensive

Easy to add stations

Convenience

Disadvantages

Hackers

With routers, limited area coverage

Social/Ethical Implications

Adapters are popular because they are easy to install and to swap between desktop computers as necessary.

Wireless connection eliminate the need for cable connections to the computer and are popular among users who value mobility.

Problem of unauthorized viewers hacking into your computer. You can set-up firewalls and password protected connections.